Measured, not vibes
Best Time to Visit Porto
By measured weather comfort, the top months for Porto are August, July, September — and RouteVerdict's editorial pick, which also weighs crowds and prices, is April, May, June, September, October. The table below is computed from ERA5 reanalysis data for 2020–2024, measured at Porto (91 m elevation).
Month by month
Porto weather and comfort, 2020–2024
| Month | Avg high | Wet days | Comfort | Season |
|---|---|---|---|---|
| January | 13.7°C / 57°F | 9.2 | 48 | |
| February | 15.7°C / 60°F | 8.8 | 59 | Shoulder |
| March | 16.2°C / 61°F | 11.8 | 57 | |
| April | 18.1°C / 65°F | 9.7 | 70 | |
| May | 20.2°C / 68°F | 8.7 | 79 | |
| June | 21.5°C / 71°F | 7.5 | 84 | |
| July | 24.4°C / 76°F | 3.3 | 92 | Best |
| August | 24°C / 75°F | 2.2 | 95 | Best |
| September | 23.2°C / 74°F | 7 | 86 | Best |
| October | 20.5°C / 69°F | 13 | 71 | |
| November | 17.2°C / 63°F | 11.5 | 63 | Shoulder |
| December | 14.5°C / 58°F | 14.3 | 46 |
Comfort is RouteVerdict's 0–100 score: 100·exp(−(high−23)²/162) × (1 − min(0.35, wet days × 0.02)). The full method is on the methodology page. Weather data by Open-Meteo.com (ERA5, CC BY 4.0), 2020–2024 normals. Wet day = ≥1 mm precipitation.
What the seasons are actually like
Traveling to Porto month by month
Porto's comfort score peaks in August at 95, with an average high of 24°C and just 2.2 wet days, narrowly ahead of July's 92.3 and September's 86. December is the wettest month, at 14.3 wet days, with comfort dropping to 45.7, the lowest of the year. RouteVerdict's editorial pick spans April through June and September through October — solid months, though none quite reach the July-August peak.
FAQ
Porto timing questions
What is the best month to visit Porto?
By measured weather comfort (ERA5 2020–2024), the top months are August, July, and September, with August scoring highest. RouteVerdict's editorial pick is April, May, June, September, and October, which also weighs crowds, prices, and events.
What is the hottest month in Porto?
July, with an average daily high of 24.4°C (76°F).
What is the rainiest month in Porto?
December, averaging 14.3 days with at least 1 mm of precipitation.
When is shoulder season in Porto?
November and February — the best-scoring months outside both the measured top three and RouteVerdict's editorial peak-season pick.
What is Porto's wettest month?
December, averaging 14.3 wet days — more than any other month — with comfort dropping to 45.7, the lowest of the year.
What is Porto's single best month for weather?
August, with an average high of 24°C, just 2.2 wet days, and a comfort score of 95 — the highest measured for any month.